[0.74] std::aligned_storage is deprecated (#14255)

* std::aligned_storage is deprecated (#14253)

* std::aligned_storage is deprecated

* Change files

* format

---------

Co-authored-by: Andrew Coates <30809111+acoates-ms@users.noreply.github.com>

* update change file

---------

Co-authored-by: Tiago <tiagomacarios@users.noreply.github.com>

Author: acoates-ms

change/react-native-windows-94cad441-d079-4e22-bfcc-f2beb900bad1.json

@@ -0,0 +1,7 @@
+{
+  "type": "patch",
+  "comment": "std::aligned_storage is deprecated",
+  "packageName": "react-native-windows",
+  "email": "30809111+acoates-ms@users.noreply.github.com",
+  "dependentChangeType": "patch"
+}

vnext/Microsoft.ReactNative.Cxx/JSI/JsiAbiApi.h

@@ -283,7 +283,9 @@ struct JsiAbiRuntime : facebook::jsi::Runtime {
     ~ValueRef() noexcept;
     operator facebook::jsi::Value const &() const noexcept;
 
-    using StoreType = std::aligned_storage_t<sizeof(DataPointerValue)>;
+    struct alignas(std::max_align_t) StoreType {
+      std::byte buffer[sizeof(DataPointerValue)];
+    };
     static void InitValueRef(JsiValueRef const &data, facebook::jsi::Value *value, StoreType *store) noexcept;
 
    private:
@@ -307,7 +309,9 @@ struct JsiAbiRuntime : facebook::jsi::Runtime {
     ~PropNameIDRef() noexcept;
     operator facebook::jsi::PropNameID const &() const noexcept;
 
-    using StoreType = std::aligned_storage_t<sizeof(DataPointerValue)>;
+    struct alignas(std::max_align_t) StoreType {
+      std::byte buffer[sizeof(DataPointerValue)];
+    };
 
    private:
     StoreType m_pointerStore{};